<button (click)="onClickOpen()" tiButton class="mr-3">弹出弹窗(已经在 constructor 中将上边距设置为 100px)</button>
<button (click)="onClickChangeTop()" tiButton class="mr-3">距顶部 200 px</button>
<button (click)="onClickChangeBottom()" tiButton class="mr-3">距底部 100 px</button>
